致倦库蚊
斯氏按蚊
野牡丹
杀幼虫剂
氯仿
生物
传统医学
乙酸乙酯
幼虫
植物
毒理
化学
埃及伊蚊
色谱法
生物化学
医学
作者
Anjali Rawani,Banerjee Atanu,Goutam Chandra
出处
期刊:Asian Pacific Journal of Tropical Disease
[Asian Pacific Journal of Tropical Medicine Press]
日期:2012-03-01
卷期号:2 (3): 200-204
被引量:11
标识
DOI:10.1016/s2222-1808(12)60046-2
摘要
To evaluate the larvicide and biting deterrency activity of bud of Polianthes tuberosa (P. tuberosa) against Culex quinquefasciatus (Cx. quinquefasciatus) and Anopheles stephensi (An. stephensi). Crude and solvent extract [ethyl acetate, chloroform: methanol (1:1, v/v), acetone] of fresh, mature, bud of P. tuberosa was tested against Cx. quinquefasciatus and An. stephensi. The repellent activity tested by chloroform: methanol (1:1, v/v) solvent extract against both mosquito species. The appropriate lethal concentrations at 24 h for chloroform: methanol (1:1, v/v) extract was also studied on non target organisms such as Toxorhynchites larvae, Diplonychus annulatum and Chironomus circumdatus. In a 72 h bioassay experiment, 0.5 % crude extract showed the highest mortality and chloroform: methanol (1:1, v/v) solvent extract showed the highest mortality, the maximum (P < 0.05) mortality was recorded at a concentration of 60 mg/L. The chloroform: methanol (1:1, v/v) solvent extract provide 4 h protection against Cx. quinquefasciatus and 5 h against An. stephensi from biting. Both crude and chloroform: methanol (1:1, v/v) extract showed efficient activity against Cx. quinquefasciatus, so it could be used as a mosquito larvicide agent. There is no change in the activity of non-target organism so, it is safe to use.
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